2
3
1
FAN
FLYWHEEL
1
2
3
4
5
OK
TM 9-4940-568-34
7-24
This task covers:
a. Removal
b. Disassembly
c. Cleaning/Inspection
d. Assembly
e. Installation
f. Follow-On Maintenance
INITIAL SETUP
Equipment Condition
Engine installed on stand, (Para 7-2)
Flywheel and housing removed,
(Para 5-11)
Front gear cover removed, (Para 5-14)
Pistons, connecting rods and bearings
removed, (Para 7-6)
Oil pan removed, (TM 9-4940-568-20)
Tools and Special Tools
Tool Kit, General Mechanic’s (Item 67, Appendix F)
Gloves, Chemical (Item 23, Appendix F)
Indicator, Dial, Set W/Magnetic Base
(Item 33, Appendix F)
Micrometer, Outside, Caliper, Set
(Item 37, Appendix F)
Nylon Brush (Item 4, Appendix F)
Puller Kit (Item 46, Appendix F)
7-5. CRANKSHAFT AND BEARINGS REPLACEMENT.
Materials/Parts
Oil, Lubricating (Item 17, Appendix B)
Personnel Required
Two
a.
Removal.
Do not pry on main bearing caps
to free them. Failure to follow
procedure could cause damage to
equipment.
NOTE
Before removing five main
bearing caps, ensure caps are
clearly marked for their location
on lubricating oil cooler side of
main bearing cap.
(1)
Perform a visual inspection of five main
bearings and crankshaft journals. Remove
four screws (1) No. 2 and 3 main bearing
caps (2) and check crankshaft (3) journals
for signs of overheating, deep scratches or
other damage.
